关于HCA卡的node guid 和port guid

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关于HCA卡的node guid 和port guid

参考文章:
How to Identify What HCA GUID to use for a PXE and SAN Boot Configuration for OVN Connected Servers (文档 ID 1528080.1)

During computer boot up, the HCA node GUID with be displayed on screen as the XgBoot option rom loads up. Just add 1 to the last digit of the node GUID to derive the port GUID.

实际的例子:

[root@rac1 ~]# ibstatCA 'mlx4_0'CA type: MT4099Number of ports: 2Firmware version: 2.34.5000Hardware version: 0Node GUID: 0x7cfe900300917ed0---------------------->7ed0System image GUID: 0x7cfe900300917ed3Port 1:State: ActivePhysical state: LinkUpRate: 56Base lid: 1   --------------------->>>此处的lid 是Local ID (LID)的意思.LMC: 0SM lid: 7Capability mask: 0x0259486aPort GUID: 0x7cfe900300917ed1--------------->7ed1=7ed0+1Link layer: InfiniBandPort 2:State: ActivePhysical state: LinkUpRate: 56Base lid: 8LMC: 0SM lid: 7Capability mask: 0x02594868Port GUID: 0x7cfe900300917ed2--------------->7ed2=7ed1+1Link layer: InfiniBand[root@rac1 ~]#

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